<?php

function HackerEncode($plainText){
    $leet = array(
        'a' => '4',
        'b' => 'I3',
        'c' => '[',
        'd' => ')',
        'e' => '3',
        'f' => '|=',
        'g' => '&',
        'h' => '#',
        'i' => '1',
        'j' => ',_|',
        'k' => '>|',
        'l' => '1',
        'm' => '/\\/\\',
        'n' => '^/',
        'o' => '0',
        'p' => '|*',
        'q' => '(_,)',
        'r' => 'I2',
        's' => '5',
        't' => '7',
        'u' => '(_)',
        'v' => '\\/',
        'w' => '\\/\\/',
        'x' => '><',
        'y' => 'j',
        'z' => '2',
        '0' => 'o',
        '1' => 'L',
        '2' => 'R',
        '3' => 'E',
        '4' => 'A',
        '5' => 'S',
        '6' => 'b',
        '7' => 'T',
        '8' => 'B',
        '9' => 'g'
    );
    $encryptedText = strtr($plainText, $leet);
    return $encryptedText;
}

echo HackerEncode("leet")."\n";
echo HackerEncode("Mi nombre es Miguelex")."\n";
echo HackerEncode("1234567890")."\n";
echo HackerEncode("Hola Mundo!! Esto es una_prueba con caracteres extrañ@s")."\n";
?>